Ventilating buildings



UNITED STATES PATENT OFFICE.

EDWIN K. BLAIKIE, 0F SOMERVILLE, MASSACHUSETTS.

VENTILATIN G BUILDINGS.

SPECIFICATION forming part of Letters Patent No. 418,305, dated December31, 1889.

' Application filed March 25, 1889. Serial No. 30fh664. (N0 model.) i

To all whom it may concern..-

Be it known that I, EDWIN K. BLAIKIE, of Somerv-ille, in the county ofMiddlesex and State of Massachusetts, have in vented a new an d usefulImprovement in Ventilating Buildings, of which the following, taken inconnection with the accompanying drawings, is a specification.

My invention relates to a device for ventilating buildings, and moreespecially to the admission of cold or fresh air to the various rooms inthe building; and it consists in certain novel features of construction,arrangement, and combination of parts, which will be readily understoodby reference to the description and the drawings and to the claim to behereinafter given, and in which my invention is clearly pointed out.

Figure l of the drawings is a vertical section of a small portion of awall and the sec ond floor of a wooden building with my improvedventilator applied thereto. Fig. 2 is a sectional elevation of the same,the cutting plane being on line 00 00 on Fig. 1, with the grating andvalves of the register removed. Fig. 3 is an elevation ofthe'ventilator-casing, looking inward,with the clapboards and boardingremoved; and Fig. 4 is a similar view to Fig. 1, but designed for usefor admitting air to a room on the ground-floor of a wooden building andnear the floor.

In the drawings, A A are floor-timbers; B, a stud of the outer wall; C,the boarding; D, the floors; a a, the clapboards; b, the baseboard; d e,the laths and plastering.

E is a rectangular tube, made preferably of metal and arranged betweenthe boarding and lathing, the same being Secured in position by screws ff, passing through ears g g on said tube and screwed into the board F,fitted between and secured to two adjacent studs B and having one ormore downwardlyinclined branch tubes h h, preferably rect angular incross-section, but gradually contracting in vertical thickness towardtheir lower ends, which lower ends occupy horizontal planes. Thesebranch tubes project downwardly through the boarding O and through theinner lower corner of the clapboard, and are so located relative to eachother and the clapboards that their lower ends are each flush with thelower edge of a clapboard, while at the same time their outer surfacesare covered an d protected by the clapboards, as shown in Figs. 1 and4..

The innerwall of the tube E hascut therein a rectangular opening H,which may be at or near the upper end of the said tube E, as

shown in Fig. l, or at or near the lowerendbranch tubes 72. h tocoincide with the lower edge of the clapboard or other projection.

I is a register-frame fitted within said lining-tube and secured to thebase-board by screws in a well-known manner and provided with thepivoted valve-bars i i and asuitable ornamental grating, saidregisterbeing of any well-known construction. The tube E, with itsbranches h h made in one piece, may be applied to brick or stonebuildings by building the same into the wall in the course of laying thesame, the outer ends of the branches opening through the wallbetween twocourses of brick or stone, or preferably under the projection of a beltor band, the same as illustrated for wooden buildings.

By this construction and arrangement of air-supplying ducts or passages,in combination with a register for controlling the admission of air tothe room, a very effective and sure means of furnishing fresh air to therooms of a building is provided without in the least disfiguring theexterior of the building, the inlets being so arranged as to becompletely hidden from ordinary observation.

WVhat I claim as new, and desire to secure by Letters Patent of theUnited States, is

The combination, with the wall of a building, of a ventilating-tubeprovided with an opening at its inner side and with adownwardly-inclined induction-tube at its outer side, saidinduction-tube extending through the wall of the building and having ahoritwo subscribing witnesses, on this 19th day of zont-al orifice and aclapboard or other pro- March, A. D. 1889. j ection covering the outersurface of said Wall w and the inclined outer projection of said in-EDNVIB BLAIKIE' duction-tube, substantially as described. \Vitnesses:

In testimony whereof I have signed ,iny N. O. LOMBARD,

name to this specification, in the presence of \VALTER E. LOMBARD.

